How to understand this table look at the lumens brightness in the far left column then compare how many watts of power each light bulb type requires to produce that level of.
20w led equivalent to incandescent.
However because lumens per watt vary for both incandescent and led lights it s easier to use a wattage to lumens comparison chart.
Since most household bulbs are 40w 60w 75w or 100w you may be able to memorize their equivalent lumens.
For example if you typically purchase 60w incandescent bulbs which produce about 700 800 lumens consider purchasing a lower energy alternative like a 42w halogen bulb 12w cfl or even a 10w led bulb to achieve the same brightness.
Click the equivalent wattage in the lumens vs.
For example a 3w led is equivalent in output to a 45 w incandescent.
For example a correct replacement for a 60w incandescent bulb would be a 15 watt cfl bulb 60 1 4 15.
Read the package to choose desired illumination level.
New led bulbs are available in cool white light which is ideal for task lighting and warm light commonly used for accent or small area lighting.
In general a simple rule to follow to replace an incandescent with an equivalent in light output cfl bulb is to select the cfl bulb that has 1 4 watts compared with the replaced incandescent bulb.